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[[Image:Hgfru5.jpg|right|thumb|Justus van Ghent's depiction of Euclid.  No likeness or description of Euclid's physical appearance made during his lifetime survives.]]

[[Image:Hgfru5.jpg|right|thumb|Justus van Ghent's depiction of Euclid.  No likeness or description of Euclid's physical appearance made during his lifetime survives.]]

'''Euclid''' was a Greek mathematician who lived 325-365 B.C. in Hellenistic [[Alexandria]].  He was the father of geometry and  wrote the ''[[Elements]]'' which is considered to be one of the most succesful mathematics textbooks ever. Euclid's Elements focuses mainly on [[geometry]] but also has a small amount of number theory dealing with [[prime number|prime numbers]] and even [[perfect number|perfect numbers]].  

'''Euclid''' was a Greek mathematician who lived 325-365 B.C. in Hellenistic [[Alexandria]].  He was the father of geometry and  wrote the ''[[Elements]]'' which is considered to be one of the most successful mathematics textbooks ever. Euclid's Elements focuses mainly on [[geometry]] but also has a small amount of number theory dealing with [[prime number|prime numbers]] and even [[perfect number|perfect numbers]].  

== Other Works ==

== Other Works ==